121230010212 has 24 divisors (see below), whose sum is σ = 282919456512. Its totient is φ = 40402941600.

The previous prime is 121230010211. The next prime is 121230010217. The reversal of 121230010212 is 212010032121.

It is a junction number, because it is equal to n+sod(n) for n = 121230010191 and 121230010200.

It is not an unprimeable number, because it can be changed into a prime (121230010211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 810964 + ... + 948747.

It is an arithmetic number, because the mean of its divisors is an integer number (11788310688).

Almost surely, 2^121230010212 is an apocalyptic number.

121230010212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121230010212 is an abundant number, since it is smaller than the sum of its proper divisors (161689446300).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121230010212 is a wasteful number, since it uses less digits than its factorization.

121230010212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1765459 (or 1765457 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 121230010212 its reverse (212010032121), we get a palindrome (333240042333).

The spelling of 121230010212 in words is "one hundred twenty-one billion, two hundred thirty million, ten thousand, two hundred twelve".